It's surely been touched on before, but I'm thinking of 4:10 gears this upcoming spring for my Bullitt. I've read that this is a good choice for this car. In other words, I'm hoping to cut about a half second off the 1/4 mile E.T. and also hoping my highway driving won't be hurt too bad. I figure maybe I'll be @ around 25 or 2600 RPM @ 70MPH. If anyone having experience with these gears would give me a little insight, it would be greatly appreciated. I feel this is a super bang for your buck mod. Thanks to all.